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537 results for “North Africa”
Linked collectors and determiners for: A review of the Tychobythinus algiricus species group from North Africa (Coleoptera: Staphylinidae: Pselaphinae).
Natural history specimen data linked to collectors and determiners held within, "A review of the Tychobythinus algiricus species group from North Africa (Coleoptera: Staphylinidae: Pselaphinae)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/f1bee12c-0039-4daf-9a8c-13f72eca6253">https://bionomia.net/dataset/f1bee12c-0039-4daf-9a8c-13f72eca6253</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/f1bee12c-0039-4daf-9a8c-13f72eca6253">https://gbif.org/dataset/f1bee12c-0039-4daf-9a8c-13f72eca6253</a>. Formatted as a Frictionless Data package.
FIG. 2 in Catalogue and keys of the Acridomorpha (Insecta, Orthoptera) from north West Africa
FIG. 2. ― Example of a species descriptive sheet, with nomenclatural data on the top banner, diagnosic features, ecological observations and distributional data. The map shows the type locality, and separates localities associated (dark color) or not (light color) with voucher specimens.
FIG. 1 in Catalogue and keys of the Acridomorpha (Insecta, Orthoptera) from north West Africa
FIG. 1. ― Identification page of Xper2: the descriptors with their states are in the left, with definitions and illustrations in the middle. Discarded taxa and remaining taxa during the polling are listed in the right.
Fig 8 in A new genus and three new species of Nogodinidae from North Africa (Insecta, Hemiptera, Auchenorrhyncha, Fulgoromorpha)
Fig 8: Mikewilsonia kunzi nov.gen. nov.sp., holotype: Head and fore body in lateral (A), frontal (B) and dorsal (C) view; left fore wing (D). Drawings by M. Stöckmann.
Fig 3 in A new genus and three new species of Nogodinidae from North Africa (Insecta, Hemiptera, Auchenorrhyncha, Fulgoromorpha)
Fig 3: Philbyella ainsefra nov.sp., holotype: Head and fore body in lateral (A), frontal (B) and dorsal (C) view. D: left fore wing.
Fig 1 in A new genus and three new species of Nogodinidae from North Africa (Insecta, Hemiptera, Auchenorrhyncha, Fulgoromorpha)
Fig 1: Issidius rotundiceps LETHIERRY in PUTON & LETHIERRY, 1887, female specimen from MNHN Paris, labelled as "type". A-C: habitus from dorsal (A), lateral (B) and frontal (C); D: labels of the specimen; E-F: tip of abdomen from caudal (D) and lateral (E); G: habitus sketch from dorsal. Photos Gernot Kunz, (c) MNHN Paris.
Fig 9 in A new genus and three new species of Nogodinidae from North Africa (Insecta, Hemiptera, Auchenorrhyncha, Fulgoromorpha)
Fig 9: Mikewilsonia kunzi nov.gen. nov.sp., holotype: Genital segment in lateral and caudal view. Drawings by M. Stöckmann.
Fig 6 in A new genus and three new species of Nogodinidae from North Africa (Insecta, Hemiptera, Auchenorrhyncha, Fulgoromorpha)
Fig 6: Philbyella gnezdilovi nov.sp., holotype: Genitalia in lateral view (A); anal segment in dorsal view (B); Apex of aedeagus in caudal view (C).
Text-fig. 8. Palaeogene terrestrial fossiliferous deposits of Africa. Note the position of the Tunisian Oligocene deposits, and their obvious interest in terms of geographic position and age (data for the Palaeogene of North Africa are from Tabuce et al. 2000, 2001, 2011, Delmer et al. 2006, Coster et al. 2012, Yans et al. 2014, Solé et al. 2016). Note that Nakwai (Kenya) is no longer considered to be Oligocene. in Arsinoitherium (Embrithopoda) And Other Large Mammals And Plants From The Oligocene Of Tunisia
Text-fig. 8. Palaeogene terrestrial fossiliferous deposits of Africa. Note the position of the Tunisian Oligocene deposits, and their obvious interest in terms of geographic position and age (data for the Palaeogene of North Africa are from Tabuce et al. 2000, 2001, 2011, Delmer et al. 2006, Coster et al. 2012, Yans et al. 2014, Solé et al. 2016). Note that Nakwai (Kenya) is no longer considered to be Oligocene.
Text-fig. 6. Distribution of Oligocene continental sediments of Africa, revealing the patchy and incomplete coverage of the occurrences. The Tunisian sedimentary outcrops represent an important resource for the north-western part of the continent. in Arsinoitherium (Embrithopoda) And Other Large Mammals And Plants From The Oligocene Of Tunisia
Text-fig. 6. Distribution of Oligocene continental sediments of Africa, revealing the patchy and incomplete coverage of the occurrences. The Tunisian sedimentary outcrops represent an important resource for the north-western part of the continent.
FIG. 5. — A, B in Pliocene brachiopods from north-western Africa
FIG. 5. — A, B, Gryphus sp. (LP-MNHN B.38671), SEM micrographs; A, transverse section of the entire shell showing the acicular primary layer (top) underlain by the secondary layer of anvil-shaped fibres, passing into the prismatic tertiary layer; B, section of the shell showing two puncta filled with pyrites, fibres near the canals bent outward; C, D, Terebratula sp. (LP-MNHN B.38316), SEM micrographs; C, transverse section of the shell showing the boundary of the acicular primary and fibrous secondary layers; D, section of the secondary layer showing fibres in oblique and longitudinal section, visible (left) modification of fibres near a punctum. Scale bars: 20 µm.
FIG. 2 in Pliocene brachiopods from north-western Africa
FIG. 2. — Aphelesia bipartita (Brocchi, 1814); A-H, ventral, dorsal, lateral and anterior views of complete specimens, Draria, Algeria (LP-MNHN B.38645); I-L, ventral, dorsal, lateral and anterior views of complete specimen, Mustapha supérieur (Algiers), Algeria (LP- MNHN B.38648); M, interior view of dorsal valve, Bab El Oued, Algeria (LP-MNHN B.38658). Scale bars: 1 cm.
FIG. 4. — A-L in Pliocene brachiopods from north-western Africa
FIG. 4. — A-L, Terebratula sp., ventral, dorsal, lateral and anterior views of complete specimens, Had Mramer, Morocco (LP-MNHN B.38316); M-O, Gryphus sp.; M, N, dorsal and lateral views of complete specimen, Mustapha inférieur (Algiers), Algeria (LP-MNHN B.38671); O, dorsal view of complete specimen, Aïn Benian, Algeria (LP-MNHN B.38666). Scale bars: A-L, 1 cm; M-O, 5 mm.
FIG. 7 in Pliocene brachiopods from north-western Africa
FIG. 7. — Megerlia eusticta (Philippi, 1836); A-H, Oued Zat, Morocco (LP-MNHN B.38317), ventral, dorsal, lateral and anterior views of complete specimens, (H) anterior view slightly oblique; I, J, between Mustapha Aïssat and Bir Mourad Raïs, Algeria (LP-MNHN B.38669), SEM micrograph of ventral view of complete specimen (I) and enlarged fragment (J) to show details of ornamentation. Scale bars: A-H, 1 cm; I, J, 2 mm.
FIG. 6. — A-F in Pliocene brachiopods from north-western Africa
FIG. 6. — A-F, Terebratulina retusa (Linnaeus, 1758), Mustapha (Algiers), Algeria (LP-MNHN B.38659); A-D, ventral, dorsal, lateral and anterior views of complete specimen; E, F, dorsal views of complete specimens; F, SEM micrograph of juvenile specimen; G, H, Megathiris detruncata (Gmelin, 1790), SEM micrographs of ventral and dorsal views of complete specimen, Mustapha (Algiers), Algeria (LP-MNHN B.38665). Scale bars: 2 mm.
FIG. 3 in Pliocene brachiopods from north-western Africa
FIG. 3. — Terebratula terebratula (Linnaeus, 1758); A-F, Douera, Algeria (LP-MNHN B.38650); A-D, ventral, dorsal, lateral and anteri- or views of complete specimen; E, F, dorsal and lateral views of complete specimen; G, dorsal view of complete specimen, Draria, Algeria (LP-MNHN B.38654); H, I, Algiers, between Mustapha inférieur and Bir Mourad Raïs, Algeria (LP-MNHN B.38675); H, inner view of the ventral valve, visible is concave symphytium and massive teeth; I, inner view of complete specimen, showing a prominent cardinal process and narrow outer hinge plates. Scale bars: 1 cm.
Figure 18. Glomeris sublimbata Lucas, 1846 in The millipede genus Glomeris Latreille, 1802 (Diplopoda, Glomerida, Glomeridae) in North Africa
Figure 18. Glomeris sublimbata Lucas, 1846, syntype from Algeria. (after Lucas 1849).
Research Funding in the Middle East and North Africa: Analyses of Acknowledgments in Scientific Publications (unified funders)
<p>This dataset is the result of the unification of funder names acknowledged in scientific publications indexed in the Web of Science with at least one author affiliated to an institution located in the Middle East and North Africa.</p> <p>This list contains 1,039 unified names of funders from the 22 MENA countries as of 16 March 2023 along with their type and country.</p>
Data from: Distribution, population dynamics and potential impacts of the invasive snail, Tarebia granifera in aquatic ecosystems of north-eastern South Africa
<p>Aquatic ecosystems globally have been invaded by molluscs. <em>Tarebia granifera</em> is a highly successful invader, often becoming the dominant aquatic invertebrate species in an invaded ecosystem. Resultingly, it has been suggested that <em>T. granifera</em> may have severe negative impacts on these invaded ecosystems. Limited information is available regarding the population structures and densities of <em>T. granifera</em>, particularly in invaded countries such as South Africa, and information on this could assist in developing management and control strategies for this invasive species. The aim of the present study was to assess the current distribution, densities, and population structures of <em>T. granifera</em> in invaded habitats on the Limpopo and Phongolo River systems, South Africa. This was accomplished by collecting aquatic benthic molluscs from sites across these systems. Water quality parameters were measured at each site and water samples collected for chemical nutrient analyses. The density of snails was determined for each site and the population size and structure as well as birth rate was calculated for <em>T. granifera. </em><em>Tarebia granifera</em> was found to be the dominant molluscan species in habitats where it was present and all size classes from new-born to mature adults were found throughout at some of the highest densities globally. Worryingly, native molluscan species, were often absent or in much lower densities than reported in literature at sites where <em>T. granifera</em> was present, suggesting a negative effect on the native molluscan density and diversity. Contrary to most previous studies, there were no significant correlations between <em>T. granifera </em>and the selected water quality parameters. Higher densities and new-born recruitment of <em>T. granifera </em>were observed in the spring than autumn, likely in response to shifts in environmental conditions. This study provides crucial insights into the population structure and dynamics of <em>T. granifera</em> in invaded habitats, particularly for relatively newly invaded regions such as southern Africa.</p>
FIG. 1 in New bryophytes for Tunisia (North Africa). Part 2: other families
FIG. 1. — Location of the study sites in northern Tunisia.
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